Magneto-optical effects of excitons in (C10H21NH3)2PbI4 under high magnetic fields up to 40 T

Xu, Chang‐Qing; Sakakura, Hiroshi; Kondo, Takashi; Takeyama, S.; Miura, N.; Takahashi, Yutaka; Kumata, Kiyoshi; Ito, Ryoichi

doi:10.1016/0038-1098(91)90644-b

Cited by 37 publications

(17 citation statements)

References 8 publications

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“…Such perovskites present a great flexibility in their optical properties: the spectral position of the excitonic transitions can be tailored by substituting different halides X [2, 3], the photoluminescence efficiency can be tailored by changing the organic part R [4]. This kind of perovskites has been studied both in the framework of fundamental studies [2,3,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24] and of applications in optoelectronic as the active material in a distributed feedback laser for example [25]. Recently the strong coupling regime between the perovskite exciton and the optical mode of a Pérot-Fabry microcavity has been demonstrated at room temperature in the UV range [5] and in the visible range [6,7].…”

Section: Pacs Numbers: Valid Pacs Appear Herementioning

confidence: 99%

Optical spectroscopy of two-dimensional layered (C_6H_5C_2H_4-NH_3)_2-PbI_4 perovskite

Gauthron¹,

Lauret²,

Doyennette³

et al. 2010

Opt. Express

272

305

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We report on optical spectroscopy (photoluminescence and photoluminescence excitation) on twodimensional self-organized layers of (C6H5C2H4 − N H3)2P bI4 perovskite. Temperature and excitation power dependance of the optical spectra gives a new insight into the excitonic and phononic properties of this hybrid organic/inorganic semiconductor. In particular, exciton-phonon interaction is found to be more than one order of magnitude higher than in GaAs QWs. As a result, photoluminescence emission lines have to be interpreted in the framework of a polaron model. PACS numbers: Valid PACS appear hereOptical properties of soft materials have attracted much attention for years thanks to their potential applications in optoelectronics devices. In particular, these last years, an increasing number of studies are dedicated on hybrid organic-inorganic materials[1], due to the possibility of combining the properties both of inorganic materials (high mobility, electrical pumping, band engineering) and of organic materials (low cost technology, high luminescence quantum yield at room temperature). In this context, organic-inorganic perovkites, having a chemical formula (R − NH3) 2 MX 4 where R is an organic chain, M is a metal and X a halogen, represent a natural hybrid system. Such perovskites present a great flexibility in their optical properties: the spectral position of the excitonic transitions can be tailored by substituting different halides X [2, 3], the photoluminescence efficiency can be tailored by changing the organic part R [4]. This kind of perovskites has been studied both in the framework of fundamental studies [2,3,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24] and of applications in optoelectronic as the active material in a distributed feedback laser for example [25]. Recently the strong coupling regime between the perovskite exciton and the optical mode of a Pérot-Fabry microcavity has been demonstrated at room temperature in the UV range [5] and in the visible range [6,7]. The physical properties of these new polaritons have now to be investigated. In particular, the demonstration of polariton-polariton interactions which lead to polariton scattering would be a breakthrough for the physics of these new devices in the context of the low threshold polariton lasers [26,27,28]. To evaluate these possibilities, a good knowledge of the perovskite material electronic properties is needed. As an example, the energy of the phonons and the strength of the electron-phonon coupling will indicate whether an efficient relaxation of perovskite polaritons is conceivable. Additionally, the origin of the different perosvkite luminescence lines has to be clarified to improve the knowledge about the exciton which couples to the cavity mode. .In this paper, we report on the optical properties of a particular perovskite molecule, namely [bi-(phenethylammonium) tetraiodoplumbate]: (C 6 H 5 C 2 H 4 − N H 3 ) 2 − P bI 4 (named PEPI), absorbing and emitting in the green part of the visible range. Photoluminescence (PL) ...

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Section: Pacs Numbers: Valid Pacs Appear Herementioning

confidence: 99%

Optical spectroscopy of two-dimensional layered (C_6H_5C_2H_4-NH_3)_2-PbI_4 perovskite

Gauthron¹,

Lauret²,

Doyennette³

et al. 2010

Opt. Express

272

305

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“…29,39,40 Moreover, early magneto-optical studies report different diamagnetic coefficients for the various sidebands, which is not consistent with the phonon replica picture. 35,36 Another interesting aspect is related to the temperature-driven phase transition. 32,41−43 The band structure of 2D perovskites is highly sensitive to octahedral distortion controlled by the organic spacer (templating).…”

mentioning

confidence: 99%

“…The g-factors for all LT and HT phases are in the range of 1.2−1.6, in agreement with previous reports. 35,36 The HT phase has diamagnetic coefficients grouped around c 0 ≃ 0.3 μeV T −2 , while the LT phase has diamagnetic coefficients that are systematically 2−3 times smaller.…”

mentioning

confidence: 99%

Phase-Transition-Induced Carrier Mass Enhancement in 2D Ruddlesden–Popper Perovskites

et al. 2019

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There is a variety of possible ways to tune the optical properties of 2D perovskites, though the mutual dependence between different tuning parameters hinders our fundamental understanding of their properties. In this work we attempt to address this issue for (C n H 2n+1 NH 3 ) 2 PbI 4 (with n=4,6,8,10,12) using optical spectroscopy in high magnetic fields up to 67 T. Our experimental results, supported by DFT calculations, clearly demonstrate that the exciton reduced mass increases by around 30% in the low temperature phase. This is reflected by a 2-3 fold decrease of the diamagnetic coefficient. Our studies show that the effective mass, which is an essential parameter for optoelectronic device op-eration, can be tuned by the variation of organic spacers and/or moderate cooling achievable using Peltier coolers. Moreover, we show that the complex absorption features visible in absorption/transmission spectra track each other in magnetic field providing strong evidence for the phonon related nature of the observed side bands.The inherent sensitivity of lead-halide perovkites to ambient conditions 1 is the Achilles heel which currently prevents the deployment of their superior properties 2-8 in real world applications. 9 The last few years have witnessed rapid development of numerous perovskite derivatives, [10][11][12][13][14][15][16][17] in an attempt to overcome the environmental stability issue. For example, 2D Ruddlesden-Popper perovskites have already demonstrated power conversion efficiency greater than 10%, with significantly improved stability. 15,18-20 Ruddlesden-Popper 1 arXiv:1909.06061v1 [cond-mat.mes-hall] 13 Sep 2019 halide perovskites are natural type I quantum wells formed by thin layers of halide perovskite separated by organic spacers layers, which act as barriers. 14,21,22 They are described by general formula A' 2 A m−1 M m X m+1 where A' is a monovalent organic cation acting as a spacer, A is a small monovalent cation (MA, FA, Cs), and M a divalent cation that can be Pb 2+ , Sn 2+ , Ge 2+ , Cu 2+ , Cd 2+ , etc., X an anion (Cl − , Br − , I − ) and m=1,2,3... is the number of octahedra layers in the perovskite slab. The hydrophobic nature of the organic spacers significantly increases the stability of these compounds promising an excellent long term performance in photovoltaic and light-emitting applications. 15,[18][19][20]23,24 A unique feature of 2D perovskites is that their properties can be tuned in far more ways than in the case of 3D perovskite semiconductors. The band gap can be tailored by varying chemical composition of the inorganic part 25,26 or by changing the thickness of the octahedral slabs, which significantly impacts the optoelectronic properties. 19,27,28 In addition, many of the 2D perovskite properties can be tuned by an appropriate choice of the building blocks with a plethora of different organic spacers to choose from. 15,20 Varying the organic spacer modifies the dielectric environment of the inorganic slab, affecting the exciton binding energy and the band gap. 14,28,...

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“…Several studies were carried out in the recent past to prove the potential ability of IO-hybrids in photonic applications: electro-absorption and electroluminescence [60][61][62][63][64], photoconductive devices, [65,66], optical nonlinear devices [67,68], stark effect [69] magneto-absorption, and spontaneous magnetization [70,71]. Apart from linear optical studies, high-optical excitation effects such as ultrafast dynamics of excitons [50,72], observation of higher-order excitons (biexciton and triexciton) [51,52,[73][74][75], and even an attempt of biexciton lasing [76] were also reported.…”

Section: Naturally Self-assembled Inorganic-organic (Io) Hybrid Systementioning

confidence: 99%

Naturally Self-Assembled Nanosystems and Their Templated Structures for Photonic Applications

Kannan

Kotla

Ahmad

et al. 2013

Journal of Nanoparticles

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Self-assembly has the advantage of fabricating structures of complex functionalities, from molecular levels to as big as macroscopic levels. Natural self-assembly involves self-aggregation of one or more materials (organic and/or inorganic) into desired structures while templated self-assembly involves interstitial space filling of diverse nature entities into self-assembled ordered/disordered templates (both from molecular to macro levels). These artificial and engineered new-generation materials offer many advantages over their individual counterparts. This paper reviews and explores the advantages of such naturally self-assembled hybrid molecular level systems and template-assisted macro-/microstructures targeting simple and low-cost device-oriented fabrication techniques, structural flexibility, and a wide range of photonic applications.

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Magneto-optical effects of excitons in (C10H21NH3)2PbI4 under high magnetic fields up to 40 T

Cited by 37 publications

References 8 publications

Optical spectroscopy of two-dimensional layered (C_6H_5C_2H_4-NH_3)_2-PbI_4 perovskite

Optical spectroscopy of two-dimensional layered (C_6H_5C_2H_4-NH_3)_2-PbI_4 perovskite

Phase-Transition-Induced Carrier Mass Enhancement in 2D Ruddlesden–Popper Perovskites

Naturally Self-Assembled Nanosystems and Their Templated Structures for Photonic Applications

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